This report introduces a technique of software documentation called conjunctive programming and discusses its role in the development and maintenance of software systems. The report also describes the conjoin tool, an adjunct to assist practitioners. Aimed at supporting software reuse while conforming with conventional development practices, conjunctive programming is defined as the extraction, integration, and embellishment of pertinent information obtained directly from an existing database of software artifacts, such as specifications, source code, configuration data, link-edit scripts, utility files, and other relevant information, into a product that achieves desired levels of detail, content, and production quality. Conjunctive programs typically include automatically generated tables of contents, indexes, cross references, bibliographic citations, tables, and figures (including graphics and illustrations). This report presents an example of conjunctive programming by documenting the use and implementation of the conjoin program. Tausworthe, Robert C. Jet Propulsion Laboratory COMPUTER PROGRAMS; DATA BASES; DOCUMENTATION; PROGRAMMING ENVIRONMENTS; SOFTWARE ENGINEERING; SOFTWARE REUSE; EXTRACTION; PROCEDURES...